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WO2004068621A1 - Procede de production de dispositif electrochimique - Google Patents

Procede de production de dispositif electrochimique Download PDF

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Publication number
WO2004068621A1
WO2004068621A1 PCT/JP2003/016957 JP0316957W WO2004068621A1 WO 2004068621 A1 WO2004068621 A1 WO 2004068621A1 JP 0316957 W JP0316957 W JP 0316957W WO 2004068621 A1 WO2004068621 A1 WO 2004068621A1
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WO
WIPO (PCT)
Prior art keywords
electrochemical device
electrode
catalyst layer
ion
ion exchange
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2003/016957
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English (en)
Japanese (ja)
Inventor
Kiyoshi Yamaura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to AU2003292686A priority Critical patent/AU2003292686A1/en
Priority to US10/506,464 priority patent/US7244280B2/en
Publication of WO2004068621A1 publication Critical patent/WO2004068621A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/8605—Porous electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8803—Supports for the deposition of the catalytic active composition
    • H01M4/881—Electrolytic membranes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/90—Selection of catalytic material
    • H01M4/92—Metals of platinum group
    • H01M4/921—Alloys or mixtures with metallic elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0289—Means for holding the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
    • H01M8/1018—Polymeric electrolyte materials
    • H01M8/1041—Polymer electrolyte composites, mixtures or blends
    • H01M8/1053—Polymer electrolyte composites, mixtures or blends consisting of layers of polymers with at least one layer being ionically conductive
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
    • H01M8/1018—Polymeric electrolyte materials
    • H01M8/1069—Polymeric electrolyte materials characterised by the manufacturing processes
    • H01M8/1086—After-treatment of the membrane other than by polymerisation
    • H01M8/1088—Chemical modification, e.g. sulfonation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
    • H01M8/1018—Polymeric electrolyte materials
    • H01M8/1069—Polymeric electrolyte materials characterised by the manufacturing processes
    • H01M8/1086—After-treatment of the membrane other than by polymerisation
    • H01M8/109—After-treatment of the membrane other than by polymerisation thermal other than drying, e.g. sintering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
    • H01M8/1018—Polymeric electrolyte materials
    • H01M8/1069—Polymeric electrolyte materials characterised by the manufacturing processes
    • H01M8/1086—After-treatment of the membrane other than by polymerisation
    • H01M8/1093—After-treatment of the membrane other than by polymerisation mechanical, e.g. pressing, puncturing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49108—Electric battery cell making
    • Y10T29/49114—Electric battery cell making including adhesively bonding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49108—Electric battery cell making
    • Y10T29/49115—Electric battery cell making including coating or impregnating

Definitions

  • the present invention relates to a method for manufacturing an electrochemical device.
  • MEA Membrane & Electrode consisting of an anode electrode, a force electrode, and an ion-exchange membrane formed of a polymer solid electrolyte
  • Nafion registered trademark
  • hydro-sulfonic acid resin such as Nafion (R) manufactured by DoPont
  • Monomers having high ion conductivity are used as ion-exchange membranes and binders in electrodes (for example, see JP-A-61-67787, column 11, line 16 to line 1). See column 5, line 7 and JP-A-61-677788, column 12, line 9 to column 16, line 2.
  • methanol is mainly used as fuel.
  • organic substances such as hydrogen gas, ethanol, dimethyl ether (DME), and getyl ether (DEE) (see, for example, Japanese Patent Publication No. 3-208826, page 3, lower right) Columns 1st to 16th lines, see Fig. 1.)
  • the direct methanol fuel cell which uses an aqueous methanol solution as fuel and reacts directly at the anode electrode, achieves high energy density, and is expected to be the next generation power source for small portable fuel cells, etc. Is growing.
  • DMFC direct methanol fuel cell
  • an electrochemical device such as a direct methanol fuel cell as described above, further improvement in output efficiency and durability is desired.
  • the direct methanol fuel cell is in a disadvantageous environment in terms of thermal durability, chemical durability, and strength durability as compared with hydrogen-based fuel cells.
  • the conventional sulfonated fluoropolymer such as Naphion (registered trademark) described above has a problem of dissolving in alcohol fuel, and as a result, the binding force of the catalyst particles is weakened. This is because the output deteriorates. In addition, this dissolution phenomenon causes a decrease in the strength of the MEA film and a breakage of the MEA film, in addition to the peeling of the catalyst layer.
  • the materials for the binder in the electrode and the ion exchange membrane must be hardly soluble in alcohol fuel and have high proton conductivity.
  • the present invention has been made to solve the above-mentioned problems, and its object is to improve the output efficiency, and to achieve thermal durability, chemical durability, and strength durability.
  • An object of the present invention is to provide a method for manufacturing an electrochemical device, which can obtain an electrochemical device having excellent durability such as performance. Disclosure of the invention
  • the present invention relates to a method for producing an electrochemical device comprising a first electrode, a second electrode, and an ion exchange membrane sandwiched between these electrodes, wherein the catalyst substance and polyvinylidene fluoride are used. After forming a catalyst layer containing the catalyst, an ion exchange group is bonded to the polyvinylidene fluoride of the catalyst layer, and the obtained ion exchange group-containing catalyst layer is used for at least one of the first electrode and the second electrode.
  • the present invention relates to a method for manufacturing an electrochemical device.
  • the ion exchange group is added to the polyvinylidene fluoride of the catalyst layer. Since the bonded and obtained ion-exchange group-containing catalyst layer is used for at least one of the first electrode and the second electrode, the binding force of the polyvinylidene fluoride to the catalyst substance is strong, and the output deterioration characteristics with time This makes it possible to manufacture an electrochemical device having excellent performance, and since the ion exchange groups are bonded after the formation of the catalyst layer, the intended catalyst layer itself can be easily formed.
  • the catalyst layer can be used during use, as in the conventional example described above, even when configured as an electrochemical device such as a direct methanol fuel cell. It does not peel off, and can prevent breakage of a MEA (Membrane & Electrode Assembly) membrane composed of the first electrode, the second electrode, and the ion exchange membrane.
  • MEA Membrane & Electrode Assembly
  • FIG. 1 is a schematic sectional view of an example of a method for manufacturing an electrochemical device according to an embodiment of the present invention.
  • FIG. 2 is a schematic sectional view of the same electrochemical device.
  • FIG. 3 is a graph showing a comparison between the IR spectrum of the MEA before treatment and the IR spectrum of the MEA after treatment in the example of the present invention.
  • FIG. 4 is a graph showing the relationship between the elapsed time and the current density.
  • the method for manufacturing an electrochemical device includes the steps of: forming the catalyst layer containing the catalyst substance and the polyvinylidene fluoride (PVDF); and forming the catalyst layer on the polyvinylidene fluoride of the catalyst layer. It is characteristic that an exchange group is bonded, and the catalyst layer containing the ion exchange group may be used for at least one of the first electrode and the second electrode. In particular, the catalyst layer and the polyfluoride may be used.
  • FIG. 1 as a schematic cross-sectional view of an example of a method for manufacturing an electrochemical device according to the present invention, first, a catalyst layer 1 containing the catalyst substance such as platinum and the vinylidene polyfluoride is used. a and an ion-exchange membrane precursor 2a made of polyvinylidene fluoride to join to form a joined body 3 to be an MEA membrane. That is, the bonded body 3 includes the current collector 4 as the first electrode, the catalyst layer 1a, the ion exchange membrane precursor 2a, the catalyst layer 1a, and the current collector 4 as the second electrode. Are laminated.
  • the conjugate 3 is immersed in a solution of the ion-exchange group-containing compound, and then pressurized and heated to impregnate the compound into the catalyst layer 1a and the ion-exchange membrane precursor 2a.
  • the ion exchange groups are respectively substituted and introduced into the fluorine atoms in the polyvinylidene fluoride forming them.
  • the processing conditions in this case differ depending on the layer thickness and composition of the bonded body 3.
  • a catalyst layer 1b made of the polyvinylidene fluoride containing the ion exchange group and the catalyst substance, and an ion exchange made of the polyvinylidene fluoride having the ion exchange group The MEA film 5 composed of the film 2b and the current collector 4 can be easily produced.
  • a sulfonic acid group (- S 0 3 H), the force Rupokishiru group (_ C_ ⁇ _OH), phosphoric acid group (one P 0 3 H), a linear sulfone group (- (CH 2) n S_ ⁇ 3 H (where n is an integer)), per full O b carbon Chokukusarisu sulfone group (one (CF 2) n S_ ⁇ 3 H (n is an integer) Ru may be mentioned) and the like.
  • the ion exchange capacity (IEC) is preferably 0.9 to 2. Ome q / g, and more preferably 0.9 to 1.2 me qZg. It can be quantitatively and easily controlled by the control.
  • any of conventionally known substances such as platinum, ruthenium, palladium, silicon, carbon, aluminum, magnesium, cobalt, iron, nickel, molybdenum, and tungsten can be used.
  • 0 gZ catalytic amount g the area loading density is 0. 1 ⁇ 2.
  • any of conventionally known materials such as carbon can be used as the current collector 4 as the first electrode and the second electrode.
  • the polyvinylidene fluoride is insoluble in aqueous methanol solution, for example, even if the obtained MEA membrane 5 is configured as an electrochemical device such as a direct methanol fuel cell, it can be used during use.
  • the catalyst layer 1 b does not peel off, and the breakage of the MEA film 5 can be prevented.
  • the output efficiency can be further improved, and an electrochemical device having more excellent durability such as thermal durability, chemical durability, and strength durability can be manufactured.
  • a fuel cell is manufactured as the electrochemical device.
  • FIG. 2 is a schematic sectional view of a fuel cell as the electrochemical device obtained by the manufacturing method according to the present invention.
  • This fuel cell has a negative electrode (fuel electrode or hydrogen electrode) 7 with a terminal 6 and a positive electrode (oxygen electrode) 9 with a terminal 8 that are opposed to each other.
  • a possible ion exchange membrane 2 is sandwiched.
  • Each of the negative electrode 7 and the positive electrode 9 has a catalyst layer 1.
  • the multilayer film (MEA) including the negative electrode 7, the positive electrode 9, and the ion exchange membrane 2 can be manufactured by the method for manufacturing an electrochemical device according to the present invention. That is, first, a catalyst layer containing the catalyst substance such as platinum and the polyvinylidene fluoride is formed on a current collector (for example, a carbon sheet) serving as the negative electrode 7 and the positive electrode 9. Then, the ion exchange membrane precursor made of polyvinylidene fluoride is sandwiched and joined between the negative electrode 7 and the positive electrode 9 with the catalyst layer so as to be in contact with the catalyst layer.
  • a catalyst layer containing the catalyst substance such as platinum and the polyvinylidene fluoride is formed on a current collector (for example, a carbon sheet) serving as the negative electrode 7 and the positive electrode 9.
  • a current collector for example, a carbon sheet
  • the obtained conjugate is immersed in a solution of the ion-exchange group-containing compound, and is then pressurized and heated, so that the catalyst layer and the ion-exchange membrane
  • the polyvinylidene fluoride forming the precursor is ion-exchanged.
  • Each exchange group can be substituted.
  • the multilayer film (MEA film) including the ion exchange membrane 2, the negative electrode 7, and the positive electrode 9 can be manufactured.
  • the methanol aqueous solution is passed through the methanol aqueous solution flow path 10 on the negative electrode 7 side during use.
  • the fuel (methanol) generates hydrogen ions while passing through the flow path 10, and the hydrogen ions move to the positive electrode 9 along with the hydrogen ions generated at the negative electrode 7 and the hydrogen ions generated at the ion exchange membrane 2.
  • 0 2 passage 1 1 reacts with oxygen (air) through the desired electromotive force by which is taken out.
  • a plurality of MEA membranes including the negative electrode 7 with the catalyst layer 1, the ion exchange membrane 2, and the positive electrode 9 with the catalyst layer 1 may be laminated to form an integral structure.
  • the effect is that power can be easily obtained.
  • an aqueous methanol solution is used as the fuel has been described, but hydrogen gas or the like may be passed through the flow path 10.
  • the catalyst layer 1 since the polyvinylidene fluoride is also insoluble in an aqueous methanol solution, even when applied to a direct methanol fuel cell, the catalyst layer 1 does not peel off during use, and breakage of the MEA film does not occur. Can be prevented.
  • the output efficiency can be further improved, and the durability is further improved.
  • a hydrogen production apparatus may be manufactured as the electrochemical device by a reaction mechanism reverse to that of a fuel cell. Further, it can be used for a lithium battery using a lithium ion conductive solid electrolyte, a water electrolysis device using a proton conductive solid electrolyte, or a proton pump. Further, as shown in FIG. 1, after forming the conjugate 3, the conjugate 3 is immersed in a solution of the ion-exchange group-containing compound, and the ion-exchange group is added to polyvinylidene fluoride in the conjugate 3.
  • the MEA membrane 5 including the ion-exchange group-containing catalyst layer lb, the ion-exchange membrane 2b, and the current collector 4 is produced by introducing substitution.
  • the ion exchange group-containing catalyst layer 1b may be used for at least one of the first electrode and the second electrode.
  • the ion-exchange membrane 2b sandwiched between the electrodes is composed of Nafion (registered trademark) ( ⁇ ° -fluorosulfonic acid), non-fluorocarbon sulfonic acid, partially fluorinated carbon sulfonic acid, and perfluorocarboxylic acid.
  • Nafion registered trademark
  • An acid, a non-fluorocarbon carboxylic acid, a partially fluorinated carbon carboxylic acid, a perfluorophosphoric acid, a non-fluorocarbon phosphoric acid, a partially fluorinated carbon phosphoric acid, or the like may be used.
  • the other catalyst layer contains Nafion (registered trademark). And other high molecular compounds may be used.
  • the catalyst layer lb may be bonded to a separately prepared ion exchange membrane after the immersion treatment described above.
  • PVDF polyvinylidene fluoride
  • each of the anode catalyst dispersion and the catalyst dispersion obtained above was applied to a carbon sheet (manufactured by Elect Mouth Chemical Co., Ltd.), and dried to form a catalyst electrode (catalyst carrying density: 1. Omg). -Pt / cm 2 ) and an anode electrode (catalyst carrying density: 1. Omg—Pt Zcm 2 ).
  • the electrodes obtained above were superimposed on both sides of the above-mentioned PVDF film, and hot-pressed at 100 ° C. at about 30 kgf / cm 2 for 5 minutes to 10 minutes to obtain a MEA before treatment.
  • the untreated MEA obtained above is immersed in an aqueous solution of methanesulfonic acid (1 M) and heated to 130 ° C. in an autoclave at 220 650 Pa (2 atm).
  • MEA in which PVDF in MEA before treatment was methanesulfonated hereinafter sometimes referred to as MEA after treatment
  • the MEA was washed with pure water to remove excess methanesulfonic acid, and subjected to the following fuel cell measurement.
  • Nafion 112 (registered trademark) having the same film thickness as in Example 1 was used, and the PVDF of Example 1 was replaced with Nafion (registered trademark) (Furuchi Chemical, EW110, MEA was formed in the same manner as in Example 1 except that the anode electrode and the cathode electrode were replaced with SE21092), and fuel cell measurement was performed.
  • FIG. 4 shows output curves (temporal changes) of Example 1 and Comparative Example 1.
  • a solution of the ion-exchange group-containing compound for example, methanesulfonic acid aqueous solution
  • ion exchange groups for example, sulfonic acid groups
  • the catalyst layer since the polyvinylidene fluoride is insoluble in an aqueous methanol solution, even when applied to a direct methanol fuel cell, the catalyst layer does not peel off during use, and breakage of the MEA film is prevented. We were able to.
  • the ion exchange group is added to the polyvinylidene fluoride of the catalyst layer. Since the bonded and obtained ion-exchange group-containing catalyst layer is used for at least one of the first electrode and the second electrode, the binding force of the polyvinylidene fluoride to the catalyst substance is strong, and the output deterioration characteristics with time This makes it possible to manufacture an electrochemical device having excellent performance, and since the ion exchange groups are bonded after the formation of the catalyst layer, the intended catalyst layer itself can be easily formed.
  • the catalyst layer does not peel off during use even when configured as an electrochemical device such as a direct methanol fuel cell.
  • MEA comprising an electrode, the second electrode, and the ion exchange membrane.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Fuel Cell (AREA)
  • Inert Electrodes (AREA)

Abstract

La présente invention concerne un procédé de production d'un dispositif électrochimique donnant un dispositif électrochimique plus efficace et se distinguant par une très bonne stabilité tant thermique, que chimique ou mécanique. L'invention concerne plus particulièrement un procédé de production d'un dispositif électrochimique constitué de deux électrodes prenant en sandwich une membrane d'échange d'ions (2). A cet effet, on réalise une couche de catalyseur (1a) contenant, d'une part une substance catalytique tel que le platine, et d'autre part un fluorure de polyvinyldiène. On lie au fluorure de polyvinyldiène de la couche de catalyseur (1a) un groupe d'échange d'ions tel qu'un groupe acide sulfonique. Enfin, on utilise pour l'une au moins des électrodes la couche de catalyseur (1b) résultante contenant le groupe d'échange d'ions.
PCT/JP2003/016957 2003-01-28 2003-12-26 Procede de production de dispositif electrochimique Ceased WO2004068621A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003292686A AU2003292686A1 (en) 2003-01-28 2003-12-26 Process for producing electrochemical device
US10/506,464 US7244280B2 (en) 2003-01-28 2003-12-26 Method for producing electrochemical device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003018491A JP2004234871A (ja) 2003-01-28 2003-01-28 電気化学デバイスの製造方法
JP2003-18491 2003-01-28

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WO2004068621A1 true WO2004068621A1 (fr) 2004-08-12

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JP2008027645A (ja) * 2006-07-19 2008-02-07 Toyota Motor Corp 膜・電極接合体の製造方法、炭化水素系高分子電解質膜及び膜・電極接合体
JP5017007B2 (ja) * 2007-07-25 2012-09-05 株式会社東芝 触媒、触媒の製造方法、膜電極複合体及び燃料電池

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WO1998022989A1 (fr) * 1996-11-18 1998-05-28 University Of Southern California Membranes d'electrolyte polymere pour piles a combustible
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WO1998022989A1 (fr) * 1996-11-18 1998-05-28 University Of Southern California Membranes d'electrolyte polymere pour piles a combustible
JP2002237308A (ja) * 2001-02-09 2002-08-23 Sony Corp ガス拡散性電極体及びその製造方法、並びに電気化学デバイス

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